Results 71 to 80 of about 148,266 (259)

Dehydration accelerates reductions in cerebral blood flow during prolonged exercise in the heat without compromising brain metabolism [PDF]

open access: yes, 2015
Dehydration hastens the decline in cerebral blood flow (CBF) during incremental exercise, while the cerebral metabolic rate for oxygen (CMRO2) is preserved.
Benjamin Garcia   +8 more
core   +2 more sources

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Early-age Performance of Cement Combination Concrete

open access: yesCivil Engineering Dimension, 2017
Heat of hydration up to 72 hours and compressive strength up to 7 days of Portland cement and 17 binary and ternary cements containing fly ash, silica fume, and metakaolin, at a water/cement ratio of 0.50 and addition contents of 20%, 35%, and 55%, were ...
Samuel Olufemi Folagbade
doaj   +3 more sources

Application of Non-invasive Methods in Assessment of Hydration Status following Habitual Training in Male Collegiate Soccer Players [PDF]

open access: yes, 2013
本研究は,大学男子サッカー選手における日常トレーニング後の体内水和状態を2種類の非侵襲的メソッドを用いて検討することを目的とした。被検者は,環太平洋大学体育会に所属する男子サッカー部員15名であった(age: 19.5±1.4 year, height: 173.2±5.9 cm; body weight: 67.0±7.6 kg; BMI: 22.6±1.8 kg/m2, body fat: 11.6±3.6 %)。サッカートレーニングはボールハンドリング,シューティング ...
大江 明宏   +4 more
core   +1 more source

Photocatalytic Activity and Mechanical Properties of Cements Modified with TiO2/N [PDF]

open access: yes, 2019
In this paper, studies of the mechanical properties and photocatalytic activity of new photoactive cement mortars are presented. The new building materials were obtained by the addition of 1, 3, and 5 wt % (based on the cement content) of nitrogen ...
Janus, Magdalena   +5 more
core   +1 more source

Scalable Polyelectrolyte Complex‐Based Sorbent With Hourly Sorption−Desorption Cycles for Multicyclic Atmospheric Water Harvesting in Arid Environments

open access: yesAdvanced Functional Materials, EarlyView.
A polyelectrolyte complex‐based sorbent is produced by scalable, environmentally benign aqueous phase inversion. Its porous, LiCl‐ and GO‐integrated architecture enables hourly adsorption−desorption cycles at low relative humidity (RH < 30%). A large‐scale prototype achieves multicyclic, solar‐driven atmospheric water harvesting of 1.37 L kg−1 day−1 ...
Seung‐Hwan Oh   +3 more
wiley   +1 more source

Early age behaviour of concrete supercontainers for radioactive waste disposal [PDF]

open access: yes, 2009
A
Craeye, Bart   +3 more
core   +2 more sources

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Regulating Hydration Heat in Magnesium Phosphate Cement Using Paraffins: Efficacy and Performance Trade-Offs

open access: yesBuildings
Magnesium phosphate cement (MPC) holds great potential for rapid repairs, yet its practical application is limited by its intense hydration exotherm. While many existing studies confirm paraffin (PA)’s ability to regulate hydration heat in other cement ...
Zhenxiang Lin   +6 more
doaj   +1 more source

Pozzolanic Effect on the Hydration Heat of Cements Incorporating Fly Ash, Obsidian, and Slag Additives

open access: yesAdvances in Civil Engineering, 2021
Made up of an engineered mix of ordinary Portland cement (OPC) with artificial pozzolans such as trass, fly ash, and slag, the blended cements have been intensely employed within cementitious materials.
Ilker Ustabas   +3 more
doaj   +1 more source

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